/*
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 */

package com.googlecode.bluetools.dom4j.dtd;

/**
 * <p>
 * <code>InternalEntityDecl</code> represents an internal entity declaration in a DTD.
 * </p>
 * 
 * @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a>
 * @version $Revision: 1.1 $
 */
public class InternalEntityDecl extends AbstractDeclaration implements InternalDeclaration {
	/** Holds value of property name. */
	private String name;

	/** Holds value of property value. */
	private String value;

	public InternalEntityDecl() {
	}

	public InternalEntityDecl(String name, String value) {
		this.name = name;
		this.value = value;
	}

	/**
	 * Getter for property name.
	 * 
	 * @return Value of property name.
	 */
	public String getName() {
		return name;
	}

	/**
	 * Setter for property name.
	 * 
	 * @param name New value of property name.
	 */
	public void setName(String name) {
		this.name = name;
	}

	/**
	 * Getter for property value.
	 * 
	 * @return Value of property value.
	 */
	public String getValue() {
		return value;
	}

	/**
	 * Setter for property value.
	 * 
	 * @param value New value of property value.
	 */
	public void setValue(String value) {
		this.value = value;
	}

	public String toString() {
		StringBuffer buffer = new StringBuffer("<!ENTITY ");

		if (name.startsWith("%")) {
			buffer.append("% ");
			buffer.append(name.substring(1));
		}
		else {
			buffer.append(name);
		}

		buffer.append(" \"");
		buffer.append(escapeEntityValue(value));
		buffer.append("\">");

		return buffer.toString();
	}

	private String escapeEntityValue(String text) {
		StringBuffer result = new StringBuffer();

		for (int i = 0; i < text.length(); i++) {
			char c = text.charAt(i);

			switch (c) {
			case '<':
				result.append("&#38;#60;");

				break;

			case '>':
				result.append("&#62;");

				break;

			case '&':
				result.append("&#38;#38;");

				break;

			case '\'':
				result.append("&#39;");

				break;

			case '\"':
				result.append("&#34;");

				break;

			default:

				if (c < 32) {
					result.append("&#" + (int) c + ";");
				}
				else {
					result.append(c);
				}

				break;
			}
		}

		return result.toString();
	}
}

/*
 * Redistribution and use of this software and associated documentation ("Software"), with or without modification, are
 * permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain copyright statements and notices. Redistributions must also contain a
 * copy of this document.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
 * following disclaimer in the documentation and/or other materials provided with the distribution.
 * 
 * 3. The name "DOM4J" must not be used to endorse or promote products derived from this Software without prior written
 * permission of MetaStuff, Ltd. For written permission, please contact dom4j-info@metastuff.com.
 * 
 * 4. Products derived from this Software may not be called "DOM4J" nor may "DOM4J" appear in their names without prior
 * written permission of MetaStuff, Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
 * 
 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
 * 
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 */
